# Error in network detection in vmtk

**URL:** <https://discourse.slicer.org/t/error-in-network-detection-in-vmtk/32340>\
**Category:** Support\
**Tags:** vmtk, vmtk-centerline\
**Created:** [October 20, 2023, 11:13am UTC](https://discourse.slicer.org/t/error-in-network-detection-in-vmtk/32340 "2023-10-20T11:13:37Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![b\_gop](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/b_gop/32/67116_2.png) [@b\_gop](https://discourse.slicer.org/u/b_gop)\
**Post date:** [October 20, 2023, 11:13am UTC](https://discourse.slicer.org/t/error-in-network-detection-in-vmtk/32340/1 "2023-10-20T11:13:37Z")

</div>

Hi all,

I am trying to do the centerline computation and network extraction for a volume.

The network extraction is fine for most of the volume, but at one point it seems to break down and gives a false detection. [On the bottom, the very dense center of branches]

Would anyone know why this is happening?

P.S: I also tried the network extraction on other volumes, and it always seems to have one such over dense center.

Image 1: only network, with the visible error  
Image 2: segmentation + network  
Image 3: segmentation + centerline

 ![error](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/8/b/8b01debd748bbd650b0677787b123de14cdeaf61.png)  
 ![Screenshot_long_vol (1)](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/1/c/1ca6ee38b09ab2e776b51a8ff96497e9cc6e2369.jpeg)  
\*\*![|294px;x505px;]  
 ![Screenshot 2023-10-20 at 1.12.41 PM](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/8/b/8bc2aad53f8ce85275eae73d5924d44daeeb764a.png)